The Influence of Internal Marketing on Employee Performance in The Ghanaian Public Sector: The Mediating Role of Organizational Commitment - Francis Osei; Alfred Owusu; Collins Kankam-Kwarteng; Gertrude Agyemang (Bisnis & Birokrasi: Jurnal Ilmu Administrasi dan Organisasi (International Journal of Administrative Sciences & Organization), 2023)